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Integrated Python and GIS approach for Geomorphometric investigation of Man River Basin, Western Madhya Pradesh, India 印度中央邦西部曼河流域地貌调查的 Python 和 GIS 集成方法
IF 8
Energy nexus Pub Date : 2024-09-18 DOI: 10.1016/j.nexus.2024.100328
Ankit Kailashi Rathore , Shafia Khan , Pramod K Verma
{"title":"Integrated Python and GIS approach for Geomorphometric investigation of Man River Basin, Western Madhya Pradesh, India","authors":"Ankit Kailashi Rathore ,&nbsp;Shafia Khan ,&nbsp;Pramod K Verma","doi":"10.1016/j.nexus.2024.100328","DOIUrl":"10.1016/j.nexus.2024.100328","url":null,"abstract":"<div><div>The Narmada Valley and adjoining region are considered to be tectonically active. The Dhar Lineament is a major zone of fracture North of Narmada River running nearly parallel to Narmada Valley. The Man River Basin spreads across the Dhar Lineament and extends up to the Narmada Lineament. The present study attempts to understand the characteristics and development of the valley of Man River. The high-resolution satellite images, GIS software, and Python program have been used for this study. The nature and characteristics of Man River Valley are quite different on either side of the Dhar Lineament. For micro-level analysis the Man Basin has been divided into 37 subbasins and their geomorphometric indices have been computed and correlated. The results indicate that in the development of Man Basin the Dhar lineament has played a crucial role. The subparallel, angular, tight meanders, and contorted streams are present in drainage. The bifurcation ratio ranges between 2 and 9, the average length of higher-order is less than the average length of lower-order for 13 subbasins, and elongated sub-basins are situated in low-lying gentle plane areas. The Drainage characteristics are largely controlled by various sets of fractures (NE-SW, NW-SE, E-W, and N-S). The anomalous behavior of parameters indicates the tectonic influence in the Man Basin development.</div></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"16 ","pages":"Article 100328"},"PeriodicalIF":8.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cost-benefit analysis of implementing a solar powered water pumping system – A case study 实施太阳能水泵系统的成本效益分析 - 案例研究
IF 8
Energy nexus Pub Date : 2024-09-14 DOI: 10.1016/j.nexus.2024.100323
Anjay Kumar Mishra , J.S. Sudarsan , C.R. Suribabu , G. Murali
{"title":"Cost-benefit analysis of implementing a solar powered water pumping system – A case study","authors":"Anjay Kumar Mishra ,&nbsp;J.S. Sudarsan ,&nbsp;C.R. Suribabu ,&nbsp;G. Murali","doi":"10.1016/j.nexus.2024.100323","DOIUrl":"10.1016/j.nexus.2024.100323","url":null,"abstract":"<div><div>Solar-powered water driving scheme (SPWDS) has been successfully employed as a practical solution to guarantee reliable water supply in various hilly regions without electrical infrastructure. The Water Supply Systems / Schemes (WSS) focus on using pumping systems for delivering potable water to the community but face practical difficulties and financial hurdles at different implementation stages. These challenges encompass the practical complexities, the absence of non-renewable energy sources, and ongoing expenses for consumable and non-consumable items incurred during the water project's execution and maintenance. The present research study evaluates the performance of four water supply systems in Nepal which use solar energy as their primary power source. The key performance indicators are assessed, including the functionality index for facility distribution. Additionally, the research aims to evaluate the feasibility of transitioning from non-renewable to sustainable renewable energy source to achieve net zero energy consumption. This evaluation concentrates explicitly on calculating the cost-effectiveness index as a key metric. A proportional analysis is undertaken to evaluate the cost-benefit of the SPWDS, considering both the potential advantages and challenges associated with these initiatives. The present study affirms the technical feasibility and economic viability of operating a WSS using renewable and eco-friendly solar energy as the power source. This finding opens avenues for reducing energy consumption and contributes significantly to developing a policy framework to for tapping solar energy.</div></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"16 ","pages":"Article 100323"},"PeriodicalIF":8.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000548/pdfft?md5=d2cd385131a9d206924c27ce83797be5&pid=1-s2.0-S2772427124000548-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mediating role of energy uncertainty for environmental management in electricity generation: The evidence from Pakistan 能源不确定性对发电环境管理的中介作用:巴基斯坦的证据
IF 8
Energy nexus Pub Date : 2024-09-13 DOI: 10.1016/j.nexus.2024.100327
Muhammad Shahbaz , Bekhzod Kuziboev , Kamil Pícha , Ilyos Abdullaev , Leon Moise Minani , Sharifa Jumaniyazova
{"title":"Mediating role of energy uncertainty for environmental management in electricity generation: The evidence from Pakistan","authors":"Muhammad Shahbaz ,&nbsp;Bekhzod Kuziboev ,&nbsp;Kamil Pícha ,&nbsp;Ilyos Abdullaev ,&nbsp;Leon Moise Minani ,&nbsp;Sharifa Jumaniyazova","doi":"10.1016/j.nexus.2024.100327","DOIUrl":"10.1016/j.nexus.2024.100327","url":null,"abstract":"<div><div>This groundbreaking study examines the relationship between CO2 intensity, aggregated and disaggregated fossil fuels, clean and nuclear energy, and, as a mediating variable, energy uncertainty for Pakistan during 2019M01 and 2022M10 with monthly data. To this end, the ARDL Bound Testing method is used to identify the long-run relationship of the studied factors. The empirical results suggest that under the mediating effect of energy uncertainty, renewables and nuclear energy in electricity generation have a negative association with CO2 intensity. In contrast, fossil fuels in generating electricity influence positively CO2 intensity in the aggregated analysis. Moreover, the disaggregated results under the mediating role of energy uncertainty reveal that only hydro energy reduces CO2 intensity as renewables, bioenergy, wind, and solar energy do not impact CO2 intensity. Both coal and gas energies cause a rise in CO2 intensity. Regarding nuclear energy, it also has a negative relation with CO2 intensity. The increase in energy uncertainty leads to a fall in CO2 intensity in aggregated and disaggregated analyses as well. Wavelet coherence analysis shows that CO2 intensity and energy uncertainty depend on each other dynamically for almost the whole employed period.</div></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"16 ","pages":"Article 100327"},"PeriodicalIF":8.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000585/pdfft?md5=f3e135296cf8d245f365ef15026e53b1&pid=1-s2.0-S2772427124000585-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
River water heat pumps to decarbonise district heating and promote the resilience of hydrosystems: Technico-economic, environmental and sociological challenges 利用河水热泵实现区域供热的低碳化并提高水系的复原力:技术经济、环境和社会学挑战
IF 8
Energy nexus Pub Date : 2024-09-12 DOI: 10.1016/j.nexus.2024.100325
Marc Clausse , Frédéric Lefèvre , Yoann Jovet , Antoine Fontaine , Laurence Rocher , Nicolas Rivière , Louis Gostiaux , Emmanuel Mignot , Ivana Vinkovic , Sara Puijalon
{"title":"River water heat pumps to decarbonise district heating and promote the resilience of hydrosystems: Technico-economic, environmental and sociological challenges","authors":"Marc Clausse ,&nbsp;Frédéric Lefèvre ,&nbsp;Yoann Jovet ,&nbsp;Antoine Fontaine ,&nbsp;Laurence Rocher ,&nbsp;Nicolas Rivière ,&nbsp;Louis Gostiaux ,&nbsp;Emmanuel Mignot ,&nbsp;Ivana Vinkovic ,&nbsp;Sara Puijalon","doi":"10.1016/j.nexus.2024.100325","DOIUrl":"10.1016/j.nexus.2024.100325","url":null,"abstract":"<div><p>The interdependence between water and energy (water-energy nexus) has been identified as one of the major challenges at European level, with roadmaps calling for the development of integrated approaches in this sector. The increase in river temperature is at the heart of this nexus, with anthropogenic thermal pollution adding to the effect of global warming. River Water Heat Pumps can play a major role by decarbonising district heating network (DHN) while actively cooling the aquatic resource. Hence, the objective of this short communication is to identify the scientific challenges to be met and the progress to be achieved considering the current state of the art. To illustrate the point, a rapid evaluation of the potential is performed for the city of Lyon in France resulting in an achievable cooling of <em>∼</em>1.5 K which is above the minimum threshold to see an effect on aquatic ecosystem while the CO<sub>2</sub> savings are significant for the DHN (<em>∼</em> divided by a factor of 10). Because of its holistic nature, the impact assessment of such a system implies considering a wide diversity of indicators: energy, environmental, economics and sociological that need to be appropriately defined and quantified. In each field, progress beyond the state of the art to be performed has been identified, e.g. 4E analysis, cold water plume dispersion, integration of biodiversity in LCA.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"16 ","pages":"Article 100325"},"PeriodicalIF":8.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000561/pdfft?md5=bc1e91ea5b68ebbfe8f3e3b80755213a&pid=1-s2.0-S2772427124000561-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrothermal Co-liquefaction of Cellulose and Polypropylene using Co-solvents 使用共溶剂对纤维素和聚丙烯进行水热共液化反应
IF 8
Energy nexus Pub Date : 2024-09-12 DOI: 10.1016/j.nexus.2024.100324
Danam Mahesh , S. Harisankar , Rajnish Kumar , R. Vinu
{"title":"Hydrothermal Co-liquefaction of Cellulose and Polypropylene using Co-solvents","authors":"Danam Mahesh ,&nbsp;S. Harisankar ,&nbsp;Rajnish Kumar ,&nbsp;R. Vinu","doi":"10.1016/j.nexus.2024.100324","DOIUrl":"10.1016/j.nexus.2024.100324","url":null,"abstract":"<div><div>Hydrothermal co-liquefaction of feedstocks that decompose in widely different temperature regimes is a promising strategy to convert thermally stable olefinic plastics at sub-critical conditions by utilizing the synergetic interactions between the intermediates generated from biopolymers and synthetic polymers. In this study, cellulose and polypropylene (PP) are co-liquefied, and the effects of temperature (300–350 °C), residence time (15–45 min), cellulose-to-PP mass ratio (25:75, 50:50 and 75:25 w%/w%) and co-solvents (glycerol, paraffin oil) on product yields and quality are thoroughly studied. Results suggest that water alone is inadequate to liquefy PP, while the incorporation of glycerol and paraffin oil greatly enhance the conversion and the bio-crude yield. Maximum bio-crude yield (78.6 wt.%) was obtained at 350 °C-30 min with cellulose:PP of 50:50 w%/w% using water:glycerol solvent. The selectivity to aliphatic hydrocarbons in the bio-crude was high (∼96.5 %) at 350 °C-15 min for a cellulose:PP ratio of 25:75 w%/w% in water-paraffin oil solvent.</div></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"16 ","pages":"Article 100324"},"PeriodicalIF":8.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277242712400055X/pdfft?md5=8e2cc1c9d7dfb198f0187f3221cf312f&pid=1-s2.0-S277242712400055X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
State-of-the-art-solar energy-driven adsorption desalination systems 最先进的太阳能驱动吸附式海水淡化系统
IF 8
Energy nexus Pub Date : 2024-08-08 DOI: 10.1016/j.nexus.2024.100319
Mohamed Ghazy , Alaa E. Zohir , Ehab S. Ali , Ahmed S. Alsaman , A.M. Farid , Hamdy H. El-Ghetany , Ahmed A. Askalany
{"title":"State-of-the-art-solar energy-driven adsorption desalination systems","authors":"Mohamed Ghazy ,&nbsp;Alaa E. Zohir ,&nbsp;Ehab S. Ali ,&nbsp;Ahmed S. Alsaman ,&nbsp;A.M. Farid ,&nbsp;Hamdy H. El-Ghetany ,&nbsp;Ahmed A. Askalany","doi":"10.1016/j.nexus.2024.100319","DOIUrl":"10.1016/j.nexus.2024.100319","url":null,"abstract":"<div><p>The present work presents a literature review of solar-driven adsorption desalination systems (ADS) from the perspective of hybrid systems, adsorption materials, and system configurations. The evaluation criteria were based on the daily water production rate (SDWP), gain output ratio, coefficient of performance (COP), and the specific cooling power (SCP) of the dual-cooling and desalination systems. Recommendations for effective systems that require further research and development to increase water productivity and enhance system performance are also mentioned. First, concerning hybrid systems, adding an ejector to the adsorption desalination cycle showed a significant improvement in SDWP, reaching 40 m<sup>3</sup>/ton per day (TPD). In comparison, using two ejectors in the ADS integrated with HDH reached 83.1 m<sup>3</sup>/TPD at a cost estimated at 1.49 $/m<sup>3</sup>. Secondly, concerning system configurations, a wire wound finned tube heat exchanger of ADS achieved high performance. The SDWP, SCP, and COP were 23.5 m<sup>3</sup>/TPD, 682 W/kg, and 0.32, respectively. Thirdly, concerning adsorption materials, the results showed promising adsorbent materials in the range of solar energy temperatures, and on top of them was sodium polyacrylate (SP)/CaCl<sub>2</sub>, where SDWP and COP were about 45 m<sup>3</sup>/TPD and 0.67, respectively, while the cost was estimated at 3.8 $/m<sup>3</sup>. Finally, it was recommended to introduce 2D adsorbents to improve the adsorption properties and heat exchangers with 3D structures to improve the overall heat transfer coefficient of ADS.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"15 ","pages":"Article 100319"},"PeriodicalIF":8.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000500/pdfft?md5=bd30d77dc7e444b17ef10bb404f285f3&pid=1-s2.0-S2772427124000500-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141952931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metamodeling life cycle assessment to explore interactions in the water-energy nexus of desalination processes 元模型生命周期评估,探索海水淡化过程中水与能源之间的相互作用
IF 8
Energy nexus Pub Date : 2024-08-03 DOI: 10.1016/j.nexus.2024.100321
Esra Aleisa
{"title":"Metamodeling life cycle assessment to explore interactions in the water-energy nexus of desalination processes","authors":"Esra Aleisa","doi":"10.1016/j.nexus.2024.100321","DOIUrl":"10.1016/j.nexus.2024.100321","url":null,"abstract":"<div><p>The relationships within the Energy-Water nexus are inherently complex, necessitating sophisticated methods to optimize and manage these interactions effectively. Metamodeling emerges as a crucial technique in abstracting these complex relationships into a manageable analytical form. This study adopts a systematic approach to construct Life Cycle Assessment (LCA) metamodels, aimed at examining the interactions within the water-energy nexus of various desalination technologies. A critical aspect of the developed methodology is the selection of sampling points that align with LCA scenarios through a tailored designed experiment (DoE) model. These scenarios, which include Reverse Osmosis (RO), Electrodialysis (ED), and Multi-Effect Distillation (MED), are evaluated using a set of indicators the Energy-Water nexus, across tradeoff nexus policies. The results signify the impact of considering the Energy-Water Nexus on optimizing desalination processes, compared to evaluating energy and water metrics independently. In policies where nexus considerations were not integrated—focusing solely on cumulative energy or exclusively on water footprint—the RO with Wind Turbine (RO[WT]) scenario emerged as the optimal solution. This configuration consumed 7.540 MJ and 1.654 m³ of water and a carbon footprint of 0.719 kg CO<sub>2</sub>eq per cubic meter of desalinated water. Conversely, policies that incorporate a nexus approach favor the adoption of MED with Thermal Solar (MED[TS]) scenario. Characterized by its moderate energy consumption of 2.226 MJ, and a water footprint of 2.226 m³, per cubic meter. These findings illustrate the critical role of employing Energy-Water Nexus frameworks through metamodeling in minimizing the environmental impacts associated with desalination processes.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"15 ","pages":"Article 100321"},"PeriodicalIF":8.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000524/pdfft?md5=f5e2d74ae7a918daeee8222dc148b480&pid=1-s2.0-S2772427124000524-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in magnetic solid catalysts: Synthesis, stabilization and application in cleaner production of biodiesel 磁性固体催化剂的最新进展:生物柴油清洁生产中的合成、稳定和应用
IF 8
Energy nexus Pub Date : 2024-08-02 DOI: 10.1016/j.nexus.2024.100318
Siri Fung Basumatary , Bipul Das , Basanta Kumar Das , Mainul Hoque , Sujata Brahma , Bidangshri Basumatary , Khemnath Patir , Manickam Selvaraj , Samuel Lalthazuala Rokhum , Sanjay Basumatary
{"title":"Recent advances in magnetic solid catalysts: Synthesis, stabilization and application in cleaner production of biodiesel","authors":"Siri Fung Basumatary ,&nbsp;Bipul Das ,&nbsp;Basanta Kumar Das ,&nbsp;Mainul Hoque ,&nbsp;Sujata Brahma ,&nbsp;Bidangshri Basumatary ,&nbsp;Khemnath Patir ,&nbsp;Manickam Selvaraj ,&nbsp;Samuel Lalthazuala Rokhum ,&nbsp;Sanjay Basumatary","doi":"10.1016/j.nexus.2024.100318","DOIUrl":"10.1016/j.nexus.2024.100318","url":null,"abstract":"<div><p>Biodiesel is generally obtained by transesterification and esterification of appropriate feedstocks facilitated by a catalyst. It has emerged to be one of the most potential alternatives for the conventional fuels gaining worldwide attention. Heterogeneous catalysts are usually preferred than homogeneous for biodiesel synthesis due to facile separation and insignificant soap formation. However, the separation still possesses difficulty leading to mass transfer hindrance. Therefore, these catalysts can be further modified using magnetic separation techniques to develop magnetically separable catalysts. The magnetic nanoparticles (MNPs) are notable appealing catalysts due to huge surface area, high activity, amicable functional groups and structures, adaptable properties, conformity in pore size, and facile separation have made them desirable catalyst carriers for biodiesel synthesis. The MNPs are modified via functionalization to construct magnetically recoverable heterogeneous nanocatalysts. Magnetic catalysts can be utilized as a befitting option for biodiesel synthesis as these are environmentally benign, highly reusable and economically viable. The current review article discusses different magnetic solid catalysts such as magnetic base, acid, biocatalysts and bifunctional of acid base catalysts for efficient biodiesel synthesis. The prime focus of this paper rest on the catalytic performances of various magnetically recoverable catalysts, mechanisms and recyclability for biodiesel production processes. The synthesis methods of magnetic heterogeneous base and acid nanocatalysts, magnetic properties, functionalization and their reciprocity on the catalytic activity are reviewed in this article.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"15 ","pages":"Article 100318"},"PeriodicalIF":8.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000494/pdfft?md5=47d7a5d673645f9a7debf85e8afa9b29&pid=1-s2.0-S2772427124000494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141953896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Harnessing sound waves for sustainable energy: Advancements and challenges in thermoacoustic technology 利用声波实现可持续能源:热声技术的进步与挑战
IF 8
Energy nexus Pub Date : 2024-07-30 DOI: 10.1016/j.nexus.2024.100320
Ussama Ali, Omar Al-Mufti, Isam Janajreh
{"title":"Harnessing sound waves for sustainable energy: Advancements and challenges in thermoacoustic technology","authors":"Ussama Ali,&nbsp;Omar Al-Mufti,&nbsp;Isam Janajreh","doi":"10.1016/j.nexus.2024.100320","DOIUrl":"10.1016/j.nexus.2024.100320","url":null,"abstract":"<div><p>In the face of urgent global environmental challenges, the pursuit of sustainable technologies has become of utmost importance. Thermoacoustic technology has emerged as a promising energy conversion method with potential applications in various domains such as power generation, waste heat recovery, refrigeration, and air conditioning. This technology harnesses the thermodynamic properties of sound waves to convert heat into work or create cooling effects, offering simplicity, reliability, and environmental friendliness. Thermoacoustic devices, including refrigerators and engines, offer a low-carbon alternative to conventional power and refrigeration systems. With minimal mechanical components and no moving parts, they boast durability, easy maintenance, and reduced susceptibility to breakdowns. Despite the advantages, thermoacoustic technology currently faces challenges such as lower efficiency compared to traditional technologies. To achieve efficient performance, these devices depend on a comprehensive understanding of complex flow physics, which encompasses the transient nature of phenomena and the conversion of thermal and acoustic energies. This work provides a comprehensive overview of recent advancements in thermoacoustic technology, specifically emphasizing prime movers and refrigerators. We present insights into the working mechanisms and performance-affecting parameters of these devices, while discussing future research prospects and obstacles to commercial implementation. This review highlights the need for a deeper understanding of thermoacoustic system mechanisms, with a focus on addressing efficiency and scalability challenges. To make thermoacoustic systems more practical, research endeavors should concentrate on unraveling nonlinear phenomena, developing nonlinear thermoacoustics, and advancing transduction systems, system design, and component optimization. Innovative design strategies, beyond traditional multi-stage and phase-change approaches, along with exploration of alternative energy sources, hold the key to significantly improving overall thermoacoustic system performance, ensuring the continual evolution and prosperity of the field in the decades ahead.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"15 ","pages":"Article 100320"},"PeriodicalIF":8.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000512/pdfft?md5=613a27ff5086dd79497f95a3063d9dd6&pid=1-s2.0-S2772427124000512-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141961258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic degradation of methamidophos in water using zinc oxide as a photocatalyst 利用氧化锌作为光催化剂光催化降解水中的甲胺磷
IF 8
Energy nexus Pub Date : 2024-07-14 DOI: 10.1016/j.nexus.2024.100317
Harry R. Yucra-Condori , Celia Choquenaira-Quispe , José A. Villanueva–Salas , Elvis G. Gonzales-Condori
{"title":"Photocatalytic degradation of methamidophos in water using zinc oxide as a photocatalyst","authors":"Harry R. Yucra-Condori ,&nbsp;Celia Choquenaira-Quispe ,&nbsp;José A. Villanueva–Salas ,&nbsp;Elvis G. Gonzales-Condori","doi":"10.1016/j.nexus.2024.100317","DOIUrl":"10.1016/j.nexus.2024.100317","url":null,"abstract":"<div><p>Conventional agriculture and the need to satisfy the demand for food, cause different types of pesticides to be used indiscriminately, causing them to be dispersed into ecosystems by wind and water currents, representing a serious environmental problem. For this reason, it is important to apply effective technologies for the elimination of pesticides from water bodies. In the present research, heterogeneous photocatalysis using ZnO as a photocatalyst was applied to evaluate the degradation of methamidophos in contaminated water prepared in ultrapure water and river water. Considering the working parameters of 3 g/L of zinc oxide, a concentration of 50 mg/L of methamidophos, with constant agitation of 300 rpm, temperature 25 ± 2 °C and a natural pH, methamidophos degradation percentages of 86.66 % and 57.96 % were achieved in ultrapure water and river water, respectively. The chloride, sulfates, nitrates, and nitrites anions present in the river water could be responsible for the decrease in the effectiveness of the photocatalytic process. The mathematical models that best describe the degradation process were the pseudo-second order model and the Elovich model.</p></div>","PeriodicalId":93548,"journal":{"name":"Energy nexus","volume":"15 ","pages":"Article 100317"},"PeriodicalIF":8.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772427124000482/pdfft?md5=faae378f404f1db14c9e36570ce36a99&pid=1-s2.0-S2772427124000482-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141713450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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